§ 41. Waiver of type, weight and size limitations for certain vehicles. 1. As used in this section "public highway" shall mean and include any highway, road, street, avenue, alley, public place, public driveway, parkway, bridge or any other public way in the state. 2. Notwithstanding any inconsistent provision of law, the state commissioner of transportation, whenever he deems it necessary in the interest of the defense effort, may issue permits subject to such conditions as he deems necessary for safety for the operation or movement upon any public highway in the state of vehicles or the combinations thereof, the types, weights or dimensions of which are inconsistent with or exceed the restrictions of limitations prescribed by or pursuant to law.